Machine for making grille work.



F. A KORLASKY.

MACHlNE FOR MAKING GRILLE WORK.

APPLICATION FILED me. 16, 1914.

Patented May 18, 1915. o l I jsHEETS-SHEET1. I. W. a 1,635 2 16 44! l THE NORRIS PETERS CO. PHOTC-LITHQ, WASHINGTON, D. c

F. A KORLASKY.

MACHINE FOR MAKING GRILLE WORK.

APPLICATION FILED JAN. 16. 1914.

Patented May 18, 1915.

3 SHEETS-SHEET 2.

W M! w IHE NORRIS PETERS 120.. FHOTO-LITHQ. WASHINGTON D, c.

F. A KORLASKY.

MACHINE FOR MAKlNG GRILLE WORK.

APPUCATION FILED JAN-16, 19H.

1, 1 39,775 Patented May 18, 1915.

3 SHEETS-SHEET 3.

mm mm M d i m M 3 g I wrwn THE NORRIS PETERS Co. PHOTC-LITHQ, WASHINGTON. 0. C4

"barren srnrns Parana enrich.

FRANK A. KORLASKY, OF RI-IINELANDER, WISCONSIN.

MACHINE FOR MAKING GRILLE WORK.

Application filed January 16, 1914.

To aZZ whom it may concern Be it known that I, FRANK A. KoRLAsKY, a citizen of the United States, residing at R-hinelander, in the county of Oneida and State of Wisconsin, have invented certain new and useful Improvements in Machines for Making Grille Work, of which the fol lowing is a specification. V

The object of this invention is to provide a machine for attaching grille rods or wires to a frame in such a manner as to form a grille structure.

A further object is to provide a machine for attaching the ends of a previously formed sheet of grille to a previously formed frame, as regards all sides thereof and as regards all ends of the wires or rods, so to form agrille structure.

A further object of the invention is to provide a machine which is especially adapted for attaching the opposite ends of grille wires about opposite sides of a grilleframe, simultaneously, so that tension will be applied to each wire or grille rod, at both ends thereof thereby avoiding distortion of the grille mesh during its anchorage to the grille frame.

Further objects of the invention will be more fully described in connection with the accompanying drawings and will be more particularly pointed out and ascertained in and by the appended claims.

In the drawings :Figure 1 is a plan view of a machine illustrating one form, of my invention, and showing a grille structure in place before the grille wires are anchored. Fig. 2 is a side elevation thereof. Fig. 3is a view in front elevation. Fig. 4 is a view in rear elevation. 5 is a longitudinal vertical sectionalview of the machine. Fig. 6 is an enlarged sectional view of one of the grille jaws for attaching the grille Wires. Fig. 7 is a perspective view thereof.

Like characters of reference designate,

similar partsthroughout the different figures of the drawings.

As illustrated, the machine of my invention includes a frame having side members 1 and 2 which are suitably connected by transversely disposed braces 3 and 4.

The side frame members land 2 have forwardly extending bearing arms 5 and 6- in which a driving shaft 7 is journaled.

The driving shaft 7 is provided with a pulley ,8 and a clutch device comprising Specification of Letters Patent.

Patented May 18, 1915. Serial No. 812,549.

fixed and loose clutch members 9 and 10, respectively, carried by the shaft 7.

An operating lever 11, pivotally mounted at 12, is connected with the movable clutch member 10, at 13, so that by depressing the free end of the lever the clutch member 10 slotted as indicated at 19, for radial adustment of the pins 16 and 17 Crank rod 20 connects disk 14 with a toothed segment 21 which is mounted upon frame member 1 to rotate about stud sha ft The segment 21 is provided with an arm 23 which is connected with the crank rod 20 as indicated at 24. The segment 21 meshes with a pinion 25 which is mounted upon a jaw-carrying shaft having a main body portion 26 which is cranked or offset with respect to its ends 27. The ends 27 are journaled in bearings 28 and 29, mounted upon side frame members 1 and 2, respectively.

The arrangement is such that one revolution of the'crank disk 14 will oscillate the jaw-carrying shaft 26 throughout less than one complete circle in a contra-clockwise direction and then back to the original position.

Crank disk 15 is connected by a crank rod 30 with an arm 31 of a toothed segment 32 which is mounted upon a stud shaft 33. By reason of the fact that stud shaft 33 is mounted upon a carriage, which will presently be described, 1 slot the rod '30, at 34, for adjustable connection with the arm 31 by a pin 35. with a pinion 36 mounted on one of'the ends 37' of a jaw-carrying shaft 38. The jawcarrying shaft38, or rather its ends 37, are journaled in bearings 39 and '40 mounted upon carriages 41 and 42. Carriages41 and 42 are slidable upon upper and lower bars 43 and 4-4 of the frame 1, and 45 and 46 of the frame member 2, respectively.

Carriage 41 1s provided with a nut 47 having threaded engagement with an adjusting screw 48 which is rotatably but longitudinally immovably mounted in bearing 49 onside frame member 1; 'A bevel gear Toothed segment 32 -meshes a bearing 55, carried by the side frame toward a central portion of the aw. The

through which an adjusting screw '54 has threaded engagement and'the screw'5 l s' rotatably but not longitudinally movable in member 2.

mount a bevel gear 56 which meshes with a bevel gear 57, mounted on adjusting shaft 52. Adjusting shaft 52 is mounted in bearings58 and 59 in the 1 and 2, respectively. A crank60, on the end of the adjusting shaft 52 affords means for turning the adjusting screws 48 and 5d to adjust the carriages 4:1 and 42 longitudinally on the. frame toward or from jaw shaft 26 to accommodate work of different sizes. The slot/8d 1n the rod 30, provides for adjustment of connection of the pin when the carriage 4:2 is adjusted.

I It will now be seen that I have provided means for oscillating the jaw shafts 26 and 38 from a lower position toward each other, and then back again to the position shown y in F ig. l, to operate simultaneously on opyposite ends of each :of the grille rods or wires running in one direction with respect to the grille structure.

.1 will now describe the construction of the jaws carried by said shafts and the manner in which the same operate, and as all the jaws of both shafts are similar in construction and operation, only one need be described in detail.

In the application of the machine shown,

a I have illustrated a grille structure which comprises a surrounding frame having side portions and 61, the frame being illus-- I tratedas being square in form: The grille work comprises interlaced and transversely disposed wires 62 and 61' of such length as tozextend over or bevond the frame when first made up, and disposed as shown 1n Fig. 1.j The purpose ofthe machine is to 3 grasp'the projecting ends ofthe grille wires and wrap the same about the side members 50' ofthe frame so as to form a grille structure. lprovide one support, indicated at 63, and

mounted on carriages 4E1 and 4L2, for supporting one portion of the grille structure and a support .64 mounted on frame sides 17 and 2 for supporting the other portion of the-grille structure: 7

' As shown more particularly in Figs. 6 and 7 the bending or winding jaws are provided with dove-tailed bases, as indicated at 65, and the jaw-carryingshafts at their cranked or offset member portions are ipolygonalin cross-section and are provided with dove-tails 66 on which the jaws 67 may be adjusted accordance with the distance between'the grille wires, the dove-tail con- Ongthe end of the adjusting screw 54 1 side frame members nection serving to firmly anchor the jaws upon the shafts in any desired position.

Any suitable means may be provided to anchor the jaws against longitudinal movement on the shaft after the jaw has been set. The jaw 67 is bifurcated with the crotch of the bifurcationtaking the form indicated by lines 68 and 69 which incline upwardlv ment is such that opposite sides will be grasped by opposing aws, as indicated in Fig. 1, and as the frame is supported in position at 63 and 64, t willbe held by the jaws against lateral movement on the supports while the terminal ends of the grille 7 wires or rods are being bent about the frame members, When the opposite side portions are disposed in the hooks 71, the grille rods will extend below the side frame members and outwardly between the jaw. members 70. Outwardly'with respect to the centers of the hooks 71, I insert a wearing bending pin 7 3 through a bore 74 extending transversely through the jaw 67. The disposition of the wearing pins 73 is preferably at the apex of the crotch walls 68 and 69 and below the center of the hooks 71 sufiiciently to permit the initially straight grille rod to pass over the wearing pins 73 and below the side member with which it is to be connected.

It will now be clearly evident that when the jaw-carrying shaft 38, or the crank portion thereof, is rotated about the center of the hooks of the jaw, as indicated at 71,that the wearing or bending pin 73 will carry the projecting end of the grille wire about the side member in a manner to completely encircle the latter with the end of the grille rod or wire. Movement to each of the shafts, simultaneously, in the present construction, is imparted to an extent to bend V the terminal end of the grille rod or wire substantially once around the side member to which it is to be attached.

Itwill be clear that one jaw of one shaft will grip one end of one'of the wires and that a jaw on the other shaft will grip the other end'of such wire so that both ends of each wire will be simultaneously bent about and into anchoring relation with the respective sides of the grille frame. Thus there will be no tendency of thewire to slacken,

but on the other hand, the wire will be tensioned and firmly held in place to form a relatively rigid grille work after its terminal ends have been bent about the grille frame.

I also converge the jaws 7 0, from their upper portions to point 75, so that there will be a frictional gripping action laterally with respect to the grille wire projecting between the jaws 70.

After the wires of opposite sides have been wound about opposite members of the grille frame, then the structure is turned about to present the remaining ends for operation by the machine so that in the construction shown, two operations will serve to completely unite all of the transversely disposed grille wires to the frame to form a rigid grille structure.

One of the special utilities of the device of my invention is to make grille shelves for a refrigerator but it will be understood that the device of my invention is capable of anchoring the ends of grille wires or rods about a grille frame of any character.

While I have herein shown and described one specific form of my invention, I do not wish to be limited thereto except for such limitations as the claims may import.

I claim 1. In a machine for anchoring the terminals of grille rods or wires to a grille frame, means for supporting a grille frame with the grille rods or wires below the frame, jaw devices for engaging opposing sides of the frame and opposite ends of the wires or rods, and means for moving said devices about the frame portions engaged thereby as axes to bend the ends of the wires or rods about said frame portion, substantially as described.

2. In a machine for anchoring the terminals of grille rods or wires to a grille frame, means for supporting the frame with the grille rods or wires below the frame, jaw devices for engaging opposing sides of the frame and opposite ends of the wires or rods, and means for moving said' devices about the frame portions engaged thereby as axes to simultaneously bend each end of the wires or rods about said frame portions, substantially as described.

3. In a machine for anchoring the terminals of grille rods or wires to a grille frame, means for supporting the frame and grille rods or wires, jaw devices for engaging opposing sides of the frame and opposite ends of the wires or rods, and means for moving said devices about the frame portions engaged thereby as axes to bend the ends of said wires or rods about said frame portions, substantially as described. 7

4:. In a machine for anchoring the terminals of grille rods or wires to a grille frame,

devices for engaging the opposing sides of' the frame and opposite ends of the wires or rods,

and means for moving said devices about the frame portions engaged thereby as axes to bend the ends of said wires or rods about said frame, substantially as described.

5. In a machine for anchoring the terminals of 'rille rods or wires to a rille frame nals of grille rods or wires to a grille frame,

devices engaging the sides of the frame and opposite ends of the wires or rods, and means for moving said devices about the frame portions adjacent thereto to bend the ends of the wires or rods into anchored re lation therewith, substantially as described.

7. In a machine for anchoring the terminal ends of grille rods or wires to grille frames, devices for engaging portions of the frame and opposite ends of the wires, and means for moving said devices about the frame portions engaged thereby throughout less than a complete circle to bend the ends of said wires about said frame portions, substantially as described.

8. In a machine for anchoring the terminal ends of grille rods or wires to grille frames, means to support the frame, a jaw device having a hook portion for engagement with the sides of the frame and a wearing pin for engagement with the wire.

' and means for moving the jaw device about said frame in that portion engaged thereby as an axis and with said pin in engagement with said wire to bend the latter about said frame, substantially as described.

In a machine for anchoring the termi nal ends of grille rods or wires to grille frames, means to support the frame in the proper relation, a jaw device having a hook portion for engagement with the sides of the frame and a bending portion for engagement with the wire at a point between the jaws of said device, and means for moving the jaw device about saidframe member as an axis with the hook portion in engagement therewith and with the bending portion in engagement with said wire to bend the latter about the frame, substantially as described. 7

10. In a machine for anchoring the termi nal ends of grille rods or wires to grille frames, means to support and hold the frame in the proper relation, a jaw having bifurcated portions for receiving the wire therebetween and said portions being hooked to V engage over the side members of said frame, a removable pin disposed between said portions to hold the wire against said frame, and means for turning said device about the 11. As a means for anchoring the end of a wire to a rod, a device having a bifurcated portion for receiving the wire therebetween and the latter being hook-shaped to engage the rod, a removable pin disposed between saidportions to hold the wire againstthe rod, and means for turningsaid device about the portion of said rod engaged thereby to cause said pin to-bend the wire about said rod, said pin being disposed at one side of said hook portion and in advance thereof with respect to the direction of movement of said device, substantially as described.

12. In a machine for anchoring the terminal ends of grille rods or wires about a grille frame,-means to support the grille frame in the proper relation, means adapted to en- 7 I gage with the opposite sides of the frame and the opposite ends of the grille wires,

and mechanism for moving v said means about said rods as axes to bend and wrap the Wires 7 in anchored relation about the frame, substantially as described.

s 13. In a machine for anchoring the terminal ends of grille rods or Wires about a grille frame, a jaW-carryingshaft cranked or oifsetwith respect to its axis of rotation, jaws mounted'on the offset portion of said shaft for engaging the end of said rods or. wires and having hook portions forengaging' the frame proportioned to disclose the center of the hook portions coincident with the aXis of rotation of the shaft, and means for imparting rotative movement to the shaft to carry the ends about said frame and in bent anchored relation with respect thereto, substantially as described.

14. In a machine for anchoring the terminal ends of grille rods or wires to a grille frame, a jaw-carrying shaft cranked or off-. set with respect to 1ts axis of rotatlon, aws

Copies of this patent may be obtained for dovetailed on the offset portion of said shaft and engaging the ends ofsaid rods or Wires andhaving hook portions for engaging the 7 frame and proportioned'to dispose the center of the hook portions coincident with the axis of rotation of said shaft, and means for rotating the shaft to bend the wires about said frame, substantially as. described.

'15. In a machine for anchoring the terminal ends of grille wires or rods about a grille frame, opposing sets of devices for engaging opposite ends of the wires, means for im-.

engaging opposite ends of the wires, means for rotatively mounting one set upon the frame, mechanism slidable on the frame for supporting the other set of. devices,'means for impartlng rotative movement to said sets of devices to bend the ends of thewires 7 about the frame, andmeans for adjusting the said mechanism to alter the distance between said sets, substantially as described.

17. In a machine for anchoring the terminal ends of grille wires or rods about a grille frame, opposing sets of devices-for engaging opposite ends of the Wires,oscillatory devices for impartingmovement to said wireengaging devices throughout part, of a circle and to return said devices to a normal position, and rotative means for actuating said oscillating devices, substantially as described;

In testimony whereof I affix my signature in presence of two witnesses.

' FRANK A. KORLAS (Y. 7

Witnesses: V

' P. L. Roonns,

E. H. ERDMAN.

five cents each, by addressing the Commissioner of Eatents,

Washington, D. C. 

